Home / 131,872.34-181,983.60-71,444.51

Finding the Fourth Proportional to 131,872.34, 181,983.60 and 71,444.51

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Solution

The fourth proportional to 131,872.34, 181,983.60 and 71,444.51 is: 98,593.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,872.34 : 181,983.60 = 71,444.51 : x
  2. Step 2: Convert to fraction form
    131,872.34/181,983.60 = 71,444.51/x
  3. Step 3: Cross multiply
    131,872.34x = 181,983.60 × 71,444.51
  4. Step 4: Simplify right side
    131,872.34x = 13,001,729,585.00
  5. Step 5: Solve for x
    x = 13,001,729,585.00/131,872.34
  6. Step 6: Final answer
    x = 98,593.31

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.